Anchorage device prestress monitoring system, method and equipment and storage medium

Abstract

The invention provides an anchorage device prestress monitoring system, method and device and a storage medium, the system comprises a split type sensor and a processing module, the split type sensor comprises a sensor body and a clamping block, the sensor body is provided with an opening, and the clamping block is arranged in the opening to be connected with the sensor body to form an annular structure; the height of the split type sensor is not greater than 10mm; the processing module is connected with the split type sensor, and the processing module is used for obtaining an initial pressure value collected by the split type sensor; preprocessing the initial pressure value to obtain a first pressure value; processing the first pressure value based on weighted filtering operation to obtain a real pressure value collected by the split type sensor; the prestress of the anchorage device is monitored based on the real pressure value, so that the size and power consumption of the sensor are reduced, and the requirement of long-term online monitoring is met.

Description

Technical Field

[0001] The present invention relates to the technical field of sensors, and in particular to an anchor prestress monitoring system, method, device and storage medium. Background Art

[0002] Prestressed anchor loading is the primary method for increasing the bearing capacity of various large-scale pit foundations and slope projects. The prestress value is directly related to the safety of the anchoring project. Long-term prestress loss in prestressed anchor structures reduces bearing capacity, posing a significant safety hazard. Failure could potentially lead to a complete project accident. Traditionally, the post-installation condition of prestressed anchor structures has been evaluated primarily through destructive testing and pullout testing.

[0003] In the existing technology, the anchor force ring made of vibrating wire strain gauges and resistance strain gauges is mainly used for measurement. The disadvantages are that the detection sensor is large in size, consumes a lot of power and is difficult to meet the needs of long-term online monitoring. Summary of the Invention

[0004] In view of this, the object of the present invention is to provide an anchor prestress monitoring system, method, device and storage medium to reduce the volume and power consumption of the sensor and meet the needs of long-term online monitoring.

[0005] In a first aspect, the present invention provides an anchor prestressing monitoring system, comprising: The split sensor includes a sensor body and a card block. The sensor body is provided with an opening, and the card block is arranged in the opening to connect with the sensor body to form a ring structure. The height of the split sensor is not greater than 10 mm. The processing module is connected to the split sensor, and the processing module is used to: obtain the initial pressure value collected by the split sensor; preprocess the initial pressure value to obtain a first pressure value; based on a weighted filtering operation, process the first pressure value within a preset time period to obtain a true pressure value collected by the split sensor; and monitor the prestress of the anchor based on the true pressure value.

[0006] Optionally, a slide groove is provided on each of the two end surfaces opposite to each other of the opening, and a limit bar is provided on each of the two end surfaces of the clamping block, and the limit bar is slidably connected to the slide groove. Optionally, the split sensor also includes an acquisition circuit, which is arranged in the split sensor. The acquisition circuit includes a first circuit, a second circuit, a third circuit and a counter. The first circuit, the second circuit and the third circuit are respectively connected to the counter. The first circuit is used to put the split sensor into a working state; the second circuit is used to put the split sensor into a standby state; and the third circuit is used to put the split sensor into a shutdown state.

[0007] Optionally, the processing module is further configured to: sorting the first pressure values ​​within a preset time period based on the time series; Based on the time series, each first pressure value is weighted and assigned a value to obtain a second pressure value; The second pressure value is filtered to obtain a true pressure value.

[0008] The second invention provides a monitoring method adapted to the above-mentioned anchor prestress monitoring system, comprising: Get the initial pressure value collected by the split sensor; Preprocessing the initial pressure value to obtain a first pressure value; Based on the weighted filtering operation, the first pressure value within the preset time period is processed to obtain the actual pressure value collected by the split sensor; Monitor anchor prestress based on actual pressure value.

[0009] Optionally, the method further includes: Get the current value of the counter; Based on the current value of the counter, determine the status of the remote sensor.

[0010] Optionally, preprocessing the initial pressure value to obtain the first pressure value includes: Set the threshold value of the split sensor; Based on the threshold, the initial pressure value is denoised to obtain the effective pressure value; Based on the cleaning rule, the effective pressure value is processed as an abnormal value to obtain a first pressure value.

[0011] Optionally, processing the first pressure value based on a weighted filtering operation to obtain a true pressure value collected by the split sensor includes: sorting the first pressure values ​​within a preset time period based on the time series; Based on the time series, each first pressure value is weighted and assigned a value to obtain a second pressure value; The second pressure value is filtered to obtain a true pressure value.

[0012] In a third aspect, the present invention also provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above-mentioned anchor prestress monitoring method when executing the computer program.

[0013] In a fourth aspect, the present invention also provides a computer-readable storage medium, which stores machine-executable instructions. When the machine-executable instructions are called and executed by a processor, the machine-executable instructions prompt the processor to execute the above-mentioned anchor prestressing monitoring method.

[0014] An embodiment of the present invention provides an anchor prestress monitoring system, method, device and storage medium, which obtains the pressure value of the anchor through a split sensor, wherein the split sensor includes a sensor body and a card block, the sensor body is provided with an opening, and the card block is arranged in the opening to be connected with the sensor body to form a ring structure; the height of the split sensor is not more than 10 mm, and the initial pressure value collected by the split sensor is obtained; the initial pressure value is preprocessed to obtain a first pressure value; based on a weighted filtering operation, the first pressure value within a preset time period is processed to obtain a true pressure value collected by the split sensor; the anchor prestress is monitored based on the true pressure value, thereby reducing the volume and power consumption of the sensor and meeting the needs of long-term online monitoring.

[0015] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic structural diagram of a split sensor provided by an embodiment of the present invention is shown; Figure 2 A schematic structural diagram of an acquisition circuit provided by an embodiment of the present invention is shown; Figure 3 A cross-sectional view of a split sensor provided by an embodiment of the present invention is shown; Figure 4 A schematic diagram of installing a split-type sensor provided by an embodiment of the present invention is shown; Figure 5 A schematic structural diagram of an anchor prestress monitoring system provided by an embodiment of the present invention is shown; Figure 6 A schematic flow chart of a method for monitoring anchor prestressing provided by an embodiment of the present invention is shown; Figure 7 A schematic structural diagram of an electronic device provided by an embodiment of the present invention is shown.

[0018] Icons: 100-split sensor; 110-sensor body; 111-sensitive element; 112-acquisition circuit; 113-temperature sensing element; 120-block; 200-concrete component; 210-first anchor plate; 220-installation sleeve; 230-original anchor; 240-second anchor plate; 250-extended anchor cable connector; 260-original pulling sleeve; 270-third anchor plate; 280-pulling cylinder; 290-secondary pulling tool anchor; 291-extended anchor cable; 300-processing module. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0020] At present, the evaluation of the status of prestressed anchor structures after installation mainly adopts destructive inspection, pull-out test and electrical measurement method. Among them, the destructive inspection is to check the relevant status of anchor cable, clip, anchor plate and anchor pad by chiseling off the anchor head sealing concrete; the pull-out test is to install a pull-out test outside the prestressed anchor cable's outer anchor head and the pre-anchor cable length. The prestress value can be directly given by the load of the oil pump through the predictive force gauge. This method is the most widely used, but it is not suitable for dynamic measurement of anchor cable force during operation, nor for long-term online anchor cable force measurement; the electrical measurement method is to use the anchor cable force ring made of vibrating wire strain gauge and resistance strain gauge for measurement. The disadvantage of this method is that the detection sensor is large in size and power consumption. Although the stress ring, size and power consumption of the resistance strain type anchor are lower than those of the vibrating wire type, it is still difficult to meet the needs of long-term online monitoring.

[0021] Figure 1 A schematic structural diagram of a split sensor 100 provided in an embodiment of the present invention is shown in FIG. Figure 1 As shown, the split sensor 100 includes a sensor body 110 and a block 120. The sensor body 110 is provided with an opening. The block 120 is arranged in the opening to connect with the sensor body 110 to form an annular structure. The height of the split sensor 100 is not greater than 10 mm.

[0022] Specifically, the split sensor 100 is divided into two parts. One part is the sensor body 110, which is used to collect data. An opening is provided on the sensor body 110, and one end of the sensor body 110 is arranged opposite to the other end of the sensor body 110; the other part is a card block 120, which is arranged at the opening to form a circular ring structure with the sensor body 110.

[0023] In an optional embodiment, a slide groove is provided on each of the two end surfaces opposite to each other of the opening, and a limit bar is provided on each of the two end surfaces of the clamping block 120, and the limit bar is slidably connected to the slide groove. In order to make the split sensor 100 more firmly fixed on the anchor cable, sliding grooves are provided at both ends of the opening of the sensor body 110, and limiting strips are provided on the two end surfaces where the block 120 abuts the sensor body 110, and the limiting strips are slidably connected in the sliding grooves.

[0024] Furthermore, the cross section of the slide groove is trapezoidal or triangular, and the shape of the limiting strip is adapted to the shape of the slide groove, thereby better limiting the positional relationship between the block 120 and the sensor body 110 .

[0025] In an optional embodiment, the split sensor 100 further includes an acquisition circuit 112, which is disposed in the split sensor 100. The acquisition circuit 112 includes a first circuit, a second circuit, a third circuit, and a counter. The first circuit, the second circuit, and the third circuit are respectively connected to the counter. The first circuit is used to put the split sensor 100 into a working state; the second circuit is used to put the split sensor 100 into a standby state; and the third circuit is used to put the split sensor 100 into a shutdown state.

[0026] Furthermore, the working state of the split sensor 100 is controlled by the acquisition circuit 112, thereby reducing the consumption of the power supply. Figure 2 As shown, the acquisition circuit 112 includes: a switch Test, a transistor T1, a transistor T2, a transistor T3, a loading voltage regulator chip IC2, an MCU and a power supply, wherein one end of the switch Test is connected to the power supply through the transistor T3 and the resistor R7, and the other end of the switch Tset is connected to the VCC port and the IO1 port of the MCU through the transistor T2 and the resistor R15. The transistor T3 is also connected to one end of the switch Test through the loading voltage regulator chip IC2 and the transistor T1, and the other end of the transistor T1 is connected to the IO2 port of the MCU through the resistor R8. By turning the switch Test on and off, power can be provided to the split sensor 100.

[0027] Furthermore, a delay counter is provided on the acquisition circuit 112 to automatically delay power-off according to the number of times the split sensor 100 acquires data, thereby further reducing the consumption of the power supply.

[0028] Specifically, the switch Test of the acquisition circuit 112 is started to turn on its second circuit, so that the split sensor 100 is in a standby state; the threshold of the delay counter is set, and when the value of the delay counter is greater than 0 and less than the threshold, the first circuit is turned on, so that the split sensor 100 is in a working state. When the split sensor 100 uploads the collected data once, the value of the delay counter is reduced by 1, that is, the value of the delay counter when working is the threshold. The split sensor 100 collects data once, and the threshold is reduced by 1 until the value of the delay counter is 0, at which point the third circuit is turned on, so that the split sensor 100 is in a shutdown state.

[0029] In an optional embodiment, a mounting groove is provided on the sensor body 110 of the split sensor 100, a sensitive element 111 is provided on the top of the mounting groove, an acquisition circuit 112 is provided on one side of the mounting groove, and a temperature sensing element 113 is provided on the other side of the mounting groove.

[0030] Specifically, Figure 3 This is a cross-sectional view of the sensor body 110 of the split sensor 100. A mounting groove is provided on the top of the sensor body 110, and a sensitive element 111 is installed on the top of the mounting groove. The sensitive element 111 is fixedly connected to the top surface of the mounting groove through a stainless steel base. An acquisition circuit 112 is provided on one end surface of the mounting groove, and a temperature sensing element 113 is provided on the other opposite end surface.

[0031] Furthermore, the sensitive element 111 is a stainless steel base, and metal elastic elements of various structural forms such as force measurement, pressure measurement, torque measurement, vibration measurement, and displacement measurement are fixed to the stainless steel body by gluing or welding.

[0032] Further, take the 5-cable 70T anchor force split sensor 100 as an example: the inner diameter of the split sensor 100 is 76mm, the outer diameter of the working elastic body is 108mm, the height of the elastic body is 18mm, the sensor range is 60T, the overload is 130%FS, the comprehensive accuracy is <±2%FS, the internal resistance is 27KΩ, the output sensitivity is 2mv / v, the working temperature is -20℃-80℃, IP67 waterproof protection, and the dimensions of the mounting sleeve 220 are: inner diameter 160mm, outer diameter 200mm, height 110mm, opening width 145mm, and height 100mm.

[0033] Specifically, such as Figure 4As shown, one end of the concrete component 200 is connected to the anchor through an extended anchor cable 291, and the extended anchor cable 291 is set at the center of the anchor. The anchor includes a first anchor plate 210, a mounting sleeve 220, a second anchor plate 240, an original pulling sleeve 260, a third anchor plate 270, a pulling cylinder 280 and a secondary pulling tool anchor 290 connected in sequence, wherein the split sensor 100 and the original anchor 230 are set in the mounting sleeve 220, and the extended anchor cable connector 250 is set in the original pulling sleeve 260.

[0034] Furthermore, the split sensor 100 can be installed on the extended anchor cable 291 in the installation sleeve 220 in the following manner: Control the pulling cylinder 280 to move away from the concrete member 200 so that a gap of 30-50 mm is created between the original anchor 230 and the first anchor plate 210; After the sensor body 110 of the split sensor 100 is clamped to the lengthened anchor cable 291 , the clamping block 120 is installed on the sensor body 110 ; The pulling cylinder 280 is released to move the original anchor 230 closer to the concrete component 200 , thereby achieving the installation of the split sensor 100 .

[0035] The split sensor 100 provided by the present invention is easy to install and reduces the overall volume and power consumption of the sensor, thereby meeting the needs of long-term online monitoring.

[0036] Figure 5 A structural diagram of an anchor prestress monitoring system provided by an embodiment of the present invention is shown in FIG. Figure 5 As shown, the system includes: a split sensor 100 and a processing module 300, the processing module is connected to the split sensor 100, and the processing module is used to: Obtain the initial pressure value collected by the split sensor 100; preprocess the initial pressure value to obtain a first pressure value; based on a weighted filtering operation, process the first pressure value within a preset time period to obtain a true pressure value collected by the split sensor 100; monitor the anchor prestress based on the true pressure value.

[0037] In the present invention, the data collected by the split sensor 100 is analyzed and processed through denoising, outlier elimination and weighted assignment filtering operations, thereby obtaining real load data.

[0038] In an optional implementation, preprocessing the initial pressure value to obtain the first pressure value includes: De-noising the initial pressure value; Remove outliers from the initial pressure values ​​after denoising.

[0039] Specifically, the initial pressure value is denoised by the following method to obtain the effective pressure value: First, the threshold of the split sensor 100 is determined based on the actual calibration data. When the temperature is within a certain range, the relationship between the threshold of the split sensor 100 and the load is as follows:

[0040] Where, is the threshold value of the split sensor 100, is the load value, is the calibration parameter; Among them, the calibration parameters can be determined according to the actual standard value and the standard output value.

[0041] Furthermore, under the quasi-static load, the split sensor 100 is subjected to a compressive load, which is a load value.

[0042] It should be noted that the relationship between the threshold value and the load of the split sensor 100 can be obtained through experiments: Under quasi-static load, load-signal data is established based on the output electrical signal values ​​corresponding to different loads borne by the split sensor 100; Fit the load-signal data to obtain a detailed curve or equation of the sensor response; According to the fitting curve or equation, calibration parameters such as sensitivity and zero offset of the split sensor 100 are determined.

[0043] Next, based on the threshold value of the split-type sensor 100 , the peak detection method is used to screen the initial pressure value to obtain the effective pressure value.

[0044] Specifically, the split sensor 100 obtains a plurality of initial pressure values ​​within a preset time period to form an initial pressure value set; Obtain the current initial pressure value in the initial pressure value set, and determine whether the current initial pressure value meets the peak condition and the threshold condition based on the peak condition and the threshold condition. If so, retain the initial pressure value; if not, delete the initial pressure value.

[0045] The peak condition is based on the relationship between the initial pressure value at the moment before and the initial pressure value at the moment after the current initial pressure value, and determines whether the current initial pressure value is a peak value. If so, the initial pressure value is retained. The expression is:

[0046]

[0047] in, is the current initial pressure value (that is, peak value), is the initial pressure value at the previous moment, is the initial pressure value at the next moment.

[0048] Furthermore, in order to avoid misjudgment caused by noise interference, the current initial pressure value must not only meet the peak condition but also be greater than the threshold of the split sensor 100 before the current initial pressure value can be determined to be a valid pressure value.

[0049] In an optional embodiment, the first pressure value is obtained by removing abnormal values ​​from the initial pressure value after denoising by the following method.

[0050] The mean and standard value of the effective pressure values ​​are calculated, and the effective pressure values ​​with a mean deviation exceeding 2 times the standard deviation are marked as outliers and eliminated.

[0051] The mean is calculated by adding up all valid pressure values ​​within a preset time period and dividing the sum by the total number of valid pressure values. The standard deviation is calculated by squaring the difference between each valid pressure value and the mean; adding up the squares of all the differences; dividing by the total number of valid pressure values ​​minus 1 to obtain the variance; and taking the square root of the variance to obtain the standard deviation.

[0052] In an optional embodiment, the processing module 300 is further configured to: sorting the first pressure values ​​within a preset time period based on the time series; Based on the time series, each first pressure value is weighted and assigned a value to obtain a second pressure value; The second pressure value is filtered to obtain a true pressure value.

[0053] Specifically, the first pressure values ​​within a preset time period are sorted according to a time sequence, and a weighted value is assigned to each first pressure value to obtain a second pressure value.

[0054] The rule for weighted assignment of each first pressure value is that the weight value assigned to the first pressure value decreases according to exponential filtering.

[0055] In this application, the 40 first pressure values ​​are sorted in chronological order, and a weight is assigned to each first pressure value, and the highest weight value is assigned to the last first pressure value in the sorting, which is 75%.

[0056] In an optional embodiment, the processing module 300 is further configured to: The second pressure value is filtered to obtain a true pressure value.

[0057] The second pressure value is filtered using the following formula:

[0058] Where, is the current real pressure value, is the smoothing coefficient, , is the current second pressure value, is the actual pressure value at the previous moment.

[0059] further, The smoothing coefficient is between 0 and 1. Determines the filter's response speed to new data, The larger it is, the faster it responds to new data, and the filtered data can keep up with the changes in the original data more quickly, but the filtering effect is poor.

[0060] Based on time and true pressure value, a curve of true pressure value change is obtained, so that the prestress of the anchor can be monitored and the working status of the anchor can be estimated.

[0061] Figure 6 A flow chart of a method for monitoring anchor prestressing provided by an embodiment of the present invention is shown as follows: Figure 6 As shown, the method includes the following steps: Step S410: obtaining an initial pressure value collected by the split sensor; Step S420: pre-processing the initial pressure value to obtain a first pressure value; Step S430: Processing the first pressure value within the preset time period based on a weighted filtering operation to obtain a true pressure value collected by the split sensor; Step S440: Monitor the anchor prestress based on the actual pressure value.

[0062] In an optional embodiment, the method further includes: Get the current value of the counter; Based on the current value of the counter, determine the status of the remote sensor.

[0063] In an optional embodiment, preprocessing the initial pressure value to obtain the first pressure value includes: Set the threshold value of the split sensor; Based on the threshold, the initial pressure value is denoised to obtain the effective pressure value; Based on the cleaning rule, the effective pressure value is processed as an abnormal value to obtain a first pressure value.

[0064] In an optional embodiment, processing the first pressure value based on a weighted filtering operation to obtain a true pressure value collected by the split sensor includes: sorting the first pressure values ​​within a preset time period based on a time series; Based on the time series, each first pressure value is weighted and assigned a value to obtain a second pressure value; The second pressure value is filtered to obtain a true pressure value.

[0065] The device provided in the embodiment of the present application has the same implementation principle and technical effects as those in the aforementioned method embodiment. For the sake of brief description, for matters not mentioned in the device embodiment, reference can be made to the corresponding content in the aforementioned method embodiment.

[0066] like Figure 7 As shown, an electronic device 600 provided in an embodiment of the present application includes: a processor 601, a memory 602 and a bus, the memory 602 stores machine-readable instructions executable by the processor 601, and when the electronic device is running, the processor 601 communicates with the memory 602 through the bus, and the processor 601 executes the machine-readable instructions to perform the steps of the above-mentioned anchor prestressing monitoring method.

[0067] Specifically, the above-mentioned memory 602 and processor 601 can be general-purpose memory and processor, which are not specifically limited here. When the processor 601 runs the computer program stored in the memory 602, it can execute the above-mentioned anchor prestress monitoring method.

[0068] The processor 601 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by an integrated logic circuit of hardware in the processor 601 or by instructions in the form of software. The above-mentioned processor 601 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium well-known in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in memory 602, and processor 601 reads information in memory 602 and, in conjunction with its hardware, completes the steps of the above method.

[0069] Corresponding to the above-mentioned anchor prestress monitoring method, an embodiment of the present application also provides a computer-readable storage medium, which stores machine-executable instructions. When the computer-executable instructions are called and executed by the processor, the computer-executable instructions prompt the processor to execute the steps of the above-mentioned anchor prestress monitoring method.

[0070] The anchor prestress monitoring system provided in the embodiment of the present application can be specific hardware on the equipment or software or firmware installed on the equipment. The implementation principle and technical effects of the device provided in the embodiment of the present application are the same as those of the aforementioned method embodiment. For the sake of brief description, for matters not mentioned in the device embodiment, reference can be made to the corresponding content in the aforementioned method embodiment. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can all refer to the corresponding processes in the aforementioned method embodiment, and will not be repeated here.

[0071] In the embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interface, the indirect coupling or communication connection of the device or unit can be electrical, mechanical or other forms.

[0072] For another example, the flowcharts and block diagrams in the accompanying drawings show the possible architectures, functions and operations of the devices, methods and computer program products according to multiple embodiments of the present application. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of code, and a part of the module, program segment or code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of the boxes in the block diagram and / or flowchart, can be implemented with a dedicated hardware-based system that performs the specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

[0073] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0074] In addition, each functional unit in the embodiments provided in the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0075] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the existing technology, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling an electronic device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program code.

[0076] It should be noted that similar numbers and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and are not to be understood as indicating or implying relative importance.

[0077] Finally, it should be noted that the above embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The scope of protection of the present application is not limited thereto. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above embodiments within the technical scope disclosed in the present application, or perform equivalent replacements for some of the technical features thereof. However, these modifications, changes, or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application. They should all be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. An anchor prestressing monitoring system, characterized in that: include: A split sensor comprising a sensor body and a card block, wherein the sensor body is provided with an opening, and the card block is disposed in the opening to connect with the sensor body to form an annular structure; the height of the split sensor is no greater than 10 mm; a processing module connected to the split sensor, the processing module being configured to: obtain an initial pressure value collected by the split sensor; preprocess the initial pressure value to obtain a first pressure value; and process the first pressure value within a preset time period based on a weighted filtering operation to obtain a true pressure value collected by the split sensor; The anchor prestress is monitored based on the true pressure value.

2. The system according to claim 1, wherein: A sliding groove is respectively provided on two end surfaces opposite to each other of the opening, and a limiting strip is provided on both end surfaces of the clamping block, and the limiting strip is slidably connected to the sliding groove.

3. The system according to claim 1, wherein: The split sensor further includes an acquisition circuit, which is disposed in the split sensor. The acquisition circuit includes a first circuit, a second circuit, a third circuit, and a counter. The first circuit, the second circuit, and the third circuit are respectively connected to the counter. The first circuit is used to put the split sensor into an operating state; the second circuit is used to put the split sensor into a standby state. The third circuit is used to put the split sensor into a shutdown state.

4. The system according to claim 1, wherein: The processing module is further configured to: sorting the first pressure values ​​within a preset time period based on a time series; Based on the time series, weighted assignment is performed on each of the first pressure values ​​to obtain a second pressure value; The second pressure value is filtered to obtain a true pressure value.

5. A method for monitoring anchor prestress, characterized in that: The anchor prestress monitoring system according to any one of claims 1 to 4, the method comprising: Get the initial pressure value collected by the split sensor; Preprocessing the initial pressure value to obtain a first pressure value; Processing the first pressure value within a preset time period based on a weighted filtering operation to obtain a true pressure value collected by the split sensor; The anchor prestress is monitored based on the true pressure value.

6. The method according to claim 5, characterized in that Also includes: Get the current value of the counter; The status of the split sensor is determined based on the current value of the counter.

7. The method according to claim 5, characterized in that Preprocessing the initial pressure value to obtain a first pressure value includes: Setting a threshold value of the split sensor; Based on the threshold, performing denoising processing on the initial pressure value to obtain a valid pressure value; Based on the cleaning rule, abnormal value processing is performed on the effective pressure value to obtain a first pressure value.

8. The method according to claim 5 or 7, characterized in that Processing the first pressure value based on a weighted filtering operation to obtain a true pressure value collected by the split sensor includes: sorting the first pressure values ​​within a preset time period based on a time series; Based on the time series, weighted assignment is performed on each of the first pressure values ​​to obtain a second pressure value; The second pressure value is filtered to obtain a true pressure value.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 5 to 8 are implemented.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores machine-executable instructions. When the machine-executable instructions are called and executed by a processor, the machine-executable instructions prompt the processor to execute the method according to any one of claims 5 to 8.

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